Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula
In order to solve the difficult problem of supporting roadway with large cross section and broken surrounding rock, the large-section inclined shaft of Pingdingshan Coal Mine is taken as the research instance. In this paper, a modified formula for the Terzaghi ultimate bearing capacity of a foundati...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/9483538 |
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| _version_ | 1832563997556080640 |
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| author | Wen-qing Peng Wei-jun Wang Chao Yuan |
| author_facet | Wen-qing Peng Wei-jun Wang Chao Yuan |
| author_sort | Wen-qing Peng |
| collection | DOAJ |
| description | In order to solve the difficult problem of supporting roadway with large cross section and broken surrounding rock, the large-section inclined shaft of Pingdingshan Coal Mine is taken as the research instance. In this paper, a modified formula for the Terzaghi ultimate bearing capacity of a foundation is established based on rock mass strength criteria. As per the engineering practice, the maximum roof pressure of the inclined shaft is calculated to be 2.7 MPa, and the minimum pressure value from the modified formula is only 0.3 MPa. In order to control the floor heave of the roadway, a U-type steel inverted arch and bolts support scheme was designed. After calculating through the mechanical model of the inverted arch, its bearing capacity is 0.56 Mpa. Through comparison and analysis of various supporting schemes, finally, the “U-type steel + inverted arch + pouring concrete + backwall grouting” technology is selected, and the engineering practice shows that the supporting scheme can effectively improve surrounding rock stability. |
| format | Article |
| id | doaj-art-8832a2d5c638413894d53fc296defd5f |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-8832a2d5c638413894d53fc296defd5f2025-02-03T01:12:08ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/94835389483538Supporting Technology Research in Deep Well Based on Modified Terzaghi FormulaWen-qing Peng0Wei-jun Wang1Chao Yuan2China School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaChina School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaChina School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaIn order to solve the difficult problem of supporting roadway with large cross section and broken surrounding rock, the large-section inclined shaft of Pingdingshan Coal Mine is taken as the research instance. In this paper, a modified formula for the Terzaghi ultimate bearing capacity of a foundation is established based on rock mass strength criteria. As per the engineering practice, the maximum roof pressure of the inclined shaft is calculated to be 2.7 MPa, and the minimum pressure value from the modified formula is only 0.3 MPa. In order to control the floor heave of the roadway, a U-type steel inverted arch and bolts support scheme was designed. After calculating through the mechanical model of the inverted arch, its bearing capacity is 0.56 Mpa. Through comparison and analysis of various supporting schemes, finally, the “U-type steel + inverted arch + pouring concrete + backwall grouting” technology is selected, and the engineering practice shows that the supporting scheme can effectively improve surrounding rock stability.http://dx.doi.org/10.1155/2018/9483538 |
| spellingShingle | Wen-qing Peng Wei-jun Wang Chao Yuan Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula Advances in Civil Engineering |
| title | Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula |
| title_full | Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula |
| title_fullStr | Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula |
| title_full_unstemmed | Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula |
| title_short | Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula |
| title_sort | supporting technology research in deep well based on modified terzaghi formula |
| url | http://dx.doi.org/10.1155/2018/9483538 |
| work_keys_str_mv | AT wenqingpeng supportingtechnologyresearchindeepwellbasedonmodifiedterzaghiformula AT weijunwang supportingtechnologyresearchindeepwellbasedonmodifiedterzaghiformula AT chaoyuan supportingtechnologyresearchindeepwellbasedonmodifiedterzaghiformula |